Problems entering text with FF 4.0

I don't know if anyone else is having the problem, but when I use Firefox 4.0, I can't see a cursor in the box where text is entered. Special formatting also seems to be on the fritz, no bold, italics or even hitting enter to break up paragraphs. No problems using Chrome so it seems limited to Firefox 4. Never had any problems with 3.x.

Known bug. Most browsers are experiencing a glitch with the editor in the last release but FF and Chrome seem particularly susceptible.

Easiest thing is to refresh the screen. Press F5. Usually works. Clicking some of the buttons to change to the other editor options, like full page editor, then going back often fix the issue as well. F5 is simpler and faster usually.